CO2-free free air replacement device for soil culture bottle

By designing a CO2-free free air exchange device for soil culture bottles, and utilizing quicklime and silica gel desiccant to adsorb CO2 and moisture, the problem of CO2 and moisture removal in soil culture bottles is solved, achieving efficient air exchange and supporting large-scale production.

CN224165266UActive Publication Date: 2026-04-28INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
Filing Date
2025-05-24
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

CO2 and moisture are difficult to remove effectively from existing soil culture bottles, resulting in low air exchange efficiency. Furthermore, traditional equipment is time-consuming and labor-intensive, making it impossible to achieve large-scale production.

Method used

A CO2-free air replacement device for soil culture bottles was designed. The device consists of an air pump, an adsorption mechanism, an adsorption tube, and a drying mechanism. Air is drawn in by the air pump, CO2 is adsorbed by soda lime, and moisture is adsorbed by silica gel desiccant, thus achieving CO2-free and water-free air replacement.

Benefits of technology

It achieves efficient CO2-free and water-free gas source replacement, improves the working efficiency of soil culture bottles, and can provide pollution-free air for 16 culture bottles at the same time, supporting large-scale production.

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Patent Text Reader

Abstract

The utility model discloses a CO2-free free air replacement device for a soil culture bottle, and relates to the technical field of soil culture. Under the cooperation of the first adsorption pipe and the second adsorption pipe, CO2 in a collected gas source can be adsorbed, so that the gas source after CO2 adsorption is exhausted through the gas outlet pipe, a CO2-free gas source after adsorption of the adsorption mechanism is introduced into the drying cylinder through the gas outlet pipe, H2O is adsorbed through the drying plate in the drying cylinder, and the CO2-free gas source is discharged through the gas outlet pipe. The dried H2O-free gas source is discharged through a gas conveying pipe, so that a CO2-free gas source and a H2O-free gas source are obtained; an air source without CO2 and H2O enters the input pipe through the air connecting pipe, then enters the connecting cavity and finally enters the indoor culture bottle through the exhaust pipe, CO2-free free air replacement is carried out on the 16 paths of soil culture bottles at the same time, and the working efficiency is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of soil culture technology, specifically to a CO2-free free air replacement device for soil culture bottles. Background Technology

[0002] Soil culture refers to the technique of cultivating plants using natural or improved soil as a substrate through methods such as sowing and transplanting. Unlike hydroponics and aeroponics, soil culture is closer to the natural growth environment, but it can be scaled up for mass production through soil improvement.

[0003] In traditional soil culture flasks, an artificial free air bag is used to continuously inject air into the flask in a single injection to replace the existing air. However, this method is time-consuming and labor-intensive, and the limited volume of the air bag prevents effective emptying of the culture flask. Therefore, we propose a CO2-free free air replacement device for soil culture flasks. Utility Model Content

[0004] The purpose of this invention is to provide a CO2-free free air replacement device for soil culture bottles in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A CO2-free free air replacement device for soil culture bottles includes:

[0007] An air pump is provided, and its output side is connected to an adsorption mechanism. The adsorption mechanism includes an air inlet pipe connected to the air pump, an output side of which is connected to a first adsorption pipe, an output side of which is connected to a connecting pipe, an output side of which is connected to a second adsorption pipe, and an output side of which is connected to an air outlet pipe. The output side of the air outlet pipe is connected to a drying mechanism, which includes a cylinder cover. A drying cylinder is detachably mounted on the lower end of the cylinder cover, and multiple drying plates are installed inside the drying cylinder. An air supply pipe is installed on the output side of the cylinder cover. The output side of the air supply pipe is connected to an air supply mechanism, which includes a connecting pipe. Both output sides of the connecting pipe are connected to input pipes, and the input side of the input pipe is connected to a connecting cavity. Multiple exhaust pipes are detachably and evenly installed horizontally on the output side of the connecting cavity.

[0008] Furthermore, the outer circumferential walls at both ends of the first adsorption tube and the second adsorption tube are connected to sealing and fixing cylinders by threads.

[0009] Furthermore, both the first adsorption tube and the second adsorption tube are filled with soda lime.

[0010] Furthermore, a positioning cylinder is sleeved on the outer wall of the first adsorption tube and the second adsorption tube, a positioning plate is fixedly installed between the positioning cylinders, and a positioning seat is fixedly installed at the lower end of the positioning plate.

[0011] Furthermore, the outer circumferential wall of the upper end of the drying cylinder is provided with external threads, and the lower end of the cylinder cover is provided with internal threads, and the cylinder cover and the drying cylinder are connected by threads.

[0012] Furthermore, the interior of each of the drying plates is filled with silica gel desiccant.

[0013] Furthermore, a sealing ring is fitted onto the circumferential surface at the intersection of the output side of the input tube and the connecting cavity.

[0014] Furthermore, a fixing plate is installed between the two connecting cavities.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. With the cooperation of the first and second adsorption tubes, this utility model can adsorb CO2 in the collected gas source. After CO2 adsorption, the gas source is discharged through the outlet pipe. The CO2-free gas source after adsorption by the adsorption mechanism is introduced into the interior of the drying cylinder through the outlet pipe. H2O is adsorbed by the drying plate inside the cylinder. After drying, the H2O-free gas source is discharged through the gas delivery pipe. Thus, a gas source free of CO2 and H2O is obtained.

[0017] 2. The CO2-free and H2O-free gas source of this utility model enters the input pipe through the gas connecting pipe, then enters the interior of the connecting chamber, and finally enters the indoor culture bottle through the exhaust pipe. At the same time, it provides CO2-free free air replacement for 16 soil culture bottles, effectively improving work efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a three-dimensional schematic diagram of the adsorption mechanism in this utility model;

[0020] Figure 3 This is a front sectional view of the drying mechanism in this utility model;

[0021] Figure 4 This is a three-dimensional schematic diagram of the gas delivery mechanism in this utility model.

[0022] Reference numerals: 1. Air pump; 2. Adsorption mechanism; 21. Inlet pipe; 22. First adsorption pipe; 23. Connecting pipe; 24. Second adsorption pipe; 25. Outlet pipe; 26. Positioning cylinder; 27. Positioning plate; 28. Positioning seat; 3. Drying mechanism; 31. Cylinder cover; 32. Drying cylinder; 33. Drying plate; 34. Gas supply pipe; 4. Gas supply mechanism; 41. Connecting pipe; 42. Input pipe; 43. Sealing ring; 44. Connecting cavity; 45. Exhaust pipe; 46. Fixing plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] Please see Figure 1 - Figure 4 This utility model provides a CO2-free free air replacement device for soil culture bottles, comprising:

[0025] A vacuum pump 1 is provided, and an adsorption mechanism 2 is connected to the output side of the vacuum pump 1. The adsorption mechanism 2 includes an air inlet pipe 21 connected to the vacuum pump 1. A first adsorption pipe 22 is connected to the output side of the air inlet pipe 21. A connecting pipe 23 is connected to the output side of the first adsorption pipe 22. A second adsorption pipe 24 is connected to the output side of the connecting pipe 23. An air outlet pipe 25 is connected to the output side of the second adsorption pipe 24.

[0026] The air pump 1 is used to collect natural air as a gas source. The air inlet pipe 21 is used to connect the air pump 1 with the first adsorption tube 22. The first adsorption tube 22 is used for the first adsorption of CO2. The connecting pipe 23 is used to connect the first adsorption tube 22 with the second adsorption tube 24. The air outlet pipe 25 is used to discharge the gas inside the second adsorption tube 24.

[0027] After the air pump 1 is started, natural air is drawn into the first adsorption tube 22 for initial adsorption. After the initial adsorption is completed, the gas enters the second adsorption tube 24 through the connecting tube 23. With the cooperation of the first adsorption tube 22 and the second adsorption tube 24, CO2 in the collected gas source can be adsorbed. At this point, the gas source after CO2 adsorption is completed is discharged through the outlet tube 25.

[0028] A drying mechanism 3 is connected to the output side of the air outlet pipe 25. The drying mechanism 3 includes a cylinder cover 31. A drying cylinder 32 is detachably installed at the lower end of the cylinder cover 31. Multiple drying plates 33 are installed inside the drying cylinder 32. An air supply pipe 34 is installed on the output side of the cylinder cover 31.

[0029] The drying cylinder 32 is used to fix the drying plate 33. With the cooperation of the cylinder cover 31 and the drying cylinder 32, the installation stability of the drying plate 33 can be further improved. The air source inside the drying cylinder 32 can be discharged through the air supply pipe 34.

[0030] The CO2-free gas source after adsorption by the adsorption mechanism 3 is introduced into the interior of the drying cylinder 32 through the outlet pipe 25. H2O is adsorbed by the drying plate 33 inside the cylinder. After drying, the H2O-free gas source is discharged through the gas delivery pipe 34. Thus, a gas source free of CO2 and H2O is obtained.

[0031] The output side of the gas supply pipe 34 is connected to the gas supply mechanism 4. The gas supply mechanism 4 includes a connecting pipe 41. Both output sides of the connecting pipe 41 are connected to input pipes 42. The input side of the input pipe 42 is connected to a connecting cavity 44. Multiple exhaust pipes 45 are detachably installed evenly along the horizontal direction on the output side of the connecting cavity 44.

[0032] The gas connecting pipe 41 is used to connect the gas supply pipe 34 and the gas input pipe 42. The gas input pipe 42 is used to supply gas into the connecting cavity 44. The exhaust pipe 45 has 16 outlets, and each exhaust pipe 45 is equipped with a one-way valve. The output side of the exhaust pipe 45 is connected to the culture flask in the chamber.

[0033] A CO2-free and H2O-free gas source enters the input pipe 42 through the gas connection pipe 41, then enters the interior of the connection chamber 44, and finally enters the indoor culture bottle through the exhaust pipe 45. At the same time, it provides CO2-free free air replacement for 16 soil culture bottles, effectively improving work efficiency.

[0034] In this embodiment, preferably, the outer circumferential walls of both ends of the first adsorption tube 22 and the second adsorption tube 24 are connected to sealing and fixing cylinders by threads; by setting the sealing and fixing cylinders, the sealing performance of the first adsorption tube 22 and the second adsorption tube 24 can be guaranteed, and by disassembling the sealing and fixing cylinders, the filling material inside the first adsorption tube 22 and the second adsorption tube 24 can be replaced, thereby ensuring long-term use effect.

[0035] In this embodiment, preferably, the interior of both the first adsorption tube 22 and the second adsorption tube 24 is filled with soda lime; CO2 adsorption can be achieved under the action of soda lime.

[0036] In this embodiment, preferably, a positioning cylinder 26 is sleeved on the outer wall of the first adsorption tube 22 and the second adsorption tube 24, and a positioning plate 27 is fixedly installed between the positioning cylinders 26. A positioning seat 28 is fixedly installed at the lower end of the positioning plate 27. Under the action of the positioning seat 28, the positioning plate 27 can achieve the purpose of supporting the positioning cylinder 26, and the positioning cylinder 26 can achieve the purpose of supporting the first adsorption tube 22 and the second adsorption tube 24.

[0037] In this embodiment, preferably, the outer circumferential wall of the upper end of the drying cylinder 32 is provided with external threads, and the lower end of the cylinder cover 31 is provided with internal threads. The cylinder cover 31 and the drying cylinder 32 are connected by threads. The threaded connection can ensure the connection stability between the drying cylinder 32 and the cylinder cover 31, and the components inside the drying cylinder 32 can be replaced by separating the drying cylinder 32 and the cylinder cover 31.

[0038] In this embodiment, preferably, each drying plate 33 is filled with silica gel desiccant; the silica gel desiccant can achieve the purpose of H2O adsorption.

[0039] In this embodiment, preferably, a sealing ring 43 is fitted onto the circumferential surface at the intersection of the output side of the input pipe 42 and the connecting cavity 44; under the action of the sealing ring 43, the connection between the input pipe 42 and the connecting cavity 44 can be sealed to prevent gas leakage.

[0040] In this embodiment, preferably, a fixing plate 46 is installed between the two connecting cavities 44; the fixing plate 46 can ensure the connection stability of the two connecting cavities 44.

[0041] Working principle and usage process of this utility model:

[0042] After starting the vacuum pump 1, natural air is drawn into the first adsorption tube 22 for initial adsorption. The gas after initial adsorption enters the second adsorption tube 24 through the connecting tube 23. With the cooperation of the first adsorption tube 22 and the second adsorption tube 24, CO2 in the collected gas source can be adsorbed. The gas source after CO2 adsorption is discharged through the outlet tube 25. The CO2-free gas source after adsorption by the adsorption mechanism 3 is introduced into the drying cylinder 32 through the outlet tube 25. H2O is adsorbed by the drying plate 33 inside the cylinder. The H2O-free gas source after drying is discharged through the gas supply tube 34. Thus, a CO2-free and H2O-free gas source is obtained. The CO2-free and H2O-free gas source enters the input tube 42 through the connecting tube 41, then enters the connecting chamber 44, and finally enters the indoor culture bottle through the exhaust tube 45. At the same time, CO2-free free air replacement is carried out for 16 soil culture bottles, effectively improving work efficiency.

[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A CO2-free free air replacement device for soil culture bottles, characterized in that, include: An air pump (1) is provided, and an adsorption mechanism (2) is connected to the output side of the air pump (1). The adsorption mechanism (2) includes an air inlet pipe (21) connected to the air pump (1). A first adsorption pipe (22) is connected to the output side of the air inlet pipe (21). A connecting pipe (23) is connected to the output side of the first adsorption pipe (22). A second adsorption pipe (24) is connected to the output side of the connecting pipe (23). An air outlet pipe (25) is connected to the output side of the second adsorption pipe (24). A drying mechanism (3) is connected to the output side of the air outlet pipe (25). The drying mechanism (3) includes a cylinder cover (31). The lower end of the cylinder cover (31) is detachably equipped with a drying cylinder (32). The drying cylinder (32) is equipped with multiple drying plates (33). The output side of the cylinder cover (31) is equipped with a gas supply pipe (34). The output side of the gas supply pipe (34) is connected to a gas supply mechanism (4). The gas supply mechanism (4) includes a connecting pipe (41). Both output sides of the connecting pipe (41) are connected to input pipes (42). The input side of the input pipe (42) is connected to a connecting cavity (44). The output side of the connecting cavity (44) is detachably equipped with multiple exhaust pipes (45) evenly in the horizontal direction.

2. The CO2-free free air replacement device for soil culture bottles according to claim 1, characterized in that: Both ends of the first adsorption tube (22) and the second adsorption tube (24) have sealing and fixing cylinders connected by threads.

3. The CO2-free free air replacement device for soil culture bottles according to claim 1, characterized in that: The interior of both the first adsorption tube (22) and the second adsorption tube (24) is filled with soda lime.

4. The CO2-free free air replacement device for soil culture bottles according to claim 1, characterized in that: A positioning cylinder (26) is sleeved on the outer wall of the first adsorption tube (22) and the second adsorption tube (24). A positioning plate (27) is fixedly installed between the positioning cylinders (26), and a positioning seat (28) is fixedly installed at the lower end of the positioning plate (27).

5. The CO2-free free air replacement device for soil culture bottles according to claim 1, characterized in that: The upper circumferential outer wall of the drying cylinder (32) is provided with an external thread, and the lower end of the cylinder cover (31) is provided with an internal thread. The cylinder cover (31) and the drying cylinder (32) are connected by a thread.

6. The CO2-free free air replacement device for soil culture bottles according to claim 1, characterized in that: Each of the aforementioned drying plates (33) is filled with silica gel desiccant.

7. The CO2-free free air replacement device for soil culture bottles according to claim 1, characterized in that: A sealing ring (43) is fitted onto the circumferential surface where the output side of the input tube (42) intersects with the connecting cavity (44).

8. The CO2-free free air replacement device for soil culture bottles according to claim 1, characterized in that: A fixing plate (46) is installed between the two connecting cavities (44).